Wallace



W.A. BEATTY.

MOISTURE PROOF PACKAGE. APPLICATION HL`ED1UNE20, 1919.

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WITNESS:

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WALLACE APPLETON BEATTY, F NEW YORK, N. Y.

PATENT OFFICE.

MOISTURE-PROOF PACKAGE.

To all whom t may concern Be it known that l, VVALLAOE ArrLE'roN VBiairr'ir, a citizen of the United States, and

a resident of New York city, borough of Manhattan, in the county and State of New York, have invented certain newy and usefull Improvements in Moisture-Proof Packages,

of Awhich the following is a specification.

My invention relates to new and useful improvements in moisture-proof packages, and particularly contemplates a package or' Wrapping which may be used in connection with various products, and particularly those which 4are susceptible to the absorption of moisture and to loss of flavor when subjected either to moisture or the atmosphere, or both. The invention will be found particularly useful in connection with such delicate substances as hard candies whichl crystallize rapidly when subjected to moisture, and chewing gums which readily absorb moisture, and in a short time lose their' flavor.

As the result of extended workin connection with packages for the purposes stated, 'I have discovered that it is practically impossible to provide a package which is moisture-proof, and which will prevent escape -of avor when the package consists of organic materials such as paper, whether coated or sealed ywith moisture-proof materials such as paraffin, or not. l have discovered that the only practical and com-- mercial Wrapping for materials of the character above mentioned, which will suc-Av cessfully prevent the absorption of moisture andthe loss of flavor, is one consisting of a non-organic substance such as a metallic foil, for example, tin-foil, which is folded or wrapped about the packaged substance so as to completely envelop the same, and sealed at all'open or edge and fold portions by means of a suitable cementing material, such for example, a moisture-proof material such as paraffin, preferably.

I have fully and clearly illustrated several embodiments of my invention in the accompanying drawings to be taken as a part of this specification, and wherein- Figure 1 is a perspective view of a chewing gum package in which the outerl wrapping consists of metallic foil sealed at its edge and Aclosure portions by means of a cementing material such as paraflin.

Fig. 2 'is'a section on the line 2-2 of Fig. l.

Specification of Letters Patent.

Patented Feb. 22, 1921.

l Application inea June 2o, 1919. serial No. 365,608.

Fig. 3 is a modification of the same invention, showing the tin-foil wrapper covered with an outer layer of wrapper of paper, not necessarily paraiined, in order to protect the foil from abrasion.

Fig, 4 is a modification showing the improvedpackage completely enveloped in the cementing material, such as paraffin, in-

stead of being applied only at theedges and folds.

Fig. 5 is a modification. in'which a plurality of sheets or layers of tin-foil areV employed. Fig. 6 is a further embodiment of the invention as applied to packages or containers of more or less permanent form, the same being shown in vertical central section. 'l

Referring tothe drawings by characters of reference, l designates a group of chewing. gum pieces, each of which may beA individually wrapped in paper, either paraffined or not, and a band of retaining paper 2 for maintaining the inner wrapping in position. The group of pieces assembled as shown, 1s wrapped in a sheet of tin-foil 3 so as to entirely envelop the same. The free edges 4 and folds 5 of the tin-foil are closed and sealed by a cementitious material 6, preferably of a moisture-proof nature, such for example asl paraiiin, preferably. If desired, the entire package wra ped in tinfoil may be dipped in para n or other cementing material instead of merely having its edges and folds sealed, such for example as shown at 7 in Fig. 4. The paraffin may be applied after the wrapping has been placed about the contents, or may be Vapplied to the foil before the latter is wrapped. In the latter case, the folds and ends may be sealed as shown in Figs. l and 2, or merely by a hot plate applied to the wrapping to melt the paraffin with which the `foil has been previously coated.

If desired, the tin-foil may, as shown in Fig. 2, carry on its inner face a thin sheet of paraffin paper 8, but this may be omitted if desired, its sole purpose being to separate the ordinary commercial tin-foil from the food product Wrapped therein. In the form shown in Fig. 2, when employing foil carrying on its inner face waxed or paraflined paper, the wax-like material or paraii'm which seals the wrapping is located between the paper carried by the'overlying tin-foil and the outer face of the underlying tin- Q inedite foil which is overlapped by the said paper, as clearly indicated at 6 in Fig. 2. When the paper is omitted, the wax-like material or paraffin which seals the wrapping will be located between the underlying and overlying layers of foil and in direct contact with both of said layers. If the package is wrapped in pure tin-foil instead of the commercial form, the paper may be omitted. If desired, the tin-foil package may have an outer layer of paper 9 (see Fig. 3), either parained or not, but thismay be omitted, inasmuch as a properly sealed or dipped tinfoil package will efficiently serve its purpose, as far as the exclusion of moisture and the retention of the flavor is concerned without additional external wrapping.

In order to prevent possible admission of moisture and escape of flavor through minute openings in the tin-foil which are not discernible to the naked eye, I may also form the foil wrapping of two layers l0, 10, as shown in Fig. 5, so that any openings which may exist in one layer will be sealed by imperforate portions of the other layer. In this form, the layers of foil may be secured `Y together by a film of parafiin or other suitable moisture-proof -cementing material, as at 11. v

In Fig. 6 of the drawings, I have shown a folded carton package consisting of a container 12 of more or less permanent form, and preferably made of paper or other fibrous sheet material commonly used for the purpose, and cover the same with tin. foil 13 which is sealed hermetica-lly at its folded and meeting edges lll by means of cementing material, such as paraffin, shown at l5, which foil may, if desired, be additionally wrapped in an external covering of paraflined paper 16, the latter, however, not being essential. In this form of the inven-V tion the entire package may be dipped in paraffin or otherwise covered therewith, instead of applying the moisture-proof material to the edges and folds.

No matter which form the invention takes, it is desirable that the meeting and overlapping edges and the fold portions of the foil be efficiently sealed by means of the ccmenting material, so that no crevices or openings will exist through which moisture v may find access to the contents, or through which the flavor of the latter may escape, Vin other words, the cementing material 1s located throughout, or is coextensive with, the

Vmeeting or overlapped edges of the foil wrapping, and between the laps of the folds. The invention as above described provides the most efficient moisture-proof, and flavor retaining package of which I am aware, and I have demonstrated this by a series of elaborate technical comparative experiments, demonstrating that there -is no wrap per package at present in use, or known,

which is comparative at all as to efficiency in a practical sense with my invention. These tests have shown that a package of commercial cliewing gum wrapped in accordance with my present invention, and subjected to moisture under a bell jar for two months, shows practically no absorption of moisture whatever, whereas, the ordinary commercial chewing gum wrapped in a paraiiined paper package and intended to be moisture-proof, when subjected to the same conditions showed substantial and objectionable absorption of moisture within one week, in fact, to such an extent as to render it useless commercially. rllhe said package above referred to, wrapped in accorr ance with my invention, at the end of two months in a closed jar, showed, upon opening` the jar 'lromtime to time, no escape of odor or 'fla-vor, whereas, the commercial package wrapped in parafiined paper showed the esc ne of the flavor at all times by mere smelling. Similar tests on hard candies showed the same compara-V tive results, that is, prevention'- of moisture effects, in the case of hard candies being crystallization of the sugar and loss of flavor.

My invention has the following advantages accruing from the prevention of moisture absorption and loss of flavor: (l) rThe material so packaged has a longer commercial life, inasmuch, asA it willlast indefinitely in proper storage, or on store shelves. (2) It results in a vast saving in tin-foil, because individual wrapping of the pieces is not necessary. turer can employ very much less flavoring mateial in the manufacture of vthe food product, because the flavor is retained to practically the same extent as whenv the goods were rst made, which means that the manufacturer does not have to over-flavor his product in order that it will have suflicient flavor when sold after an extended time. Y (Ll) The package not only prevents the admission of moisture to the package, but also prevents Jthe escape of the desirable amount of moisture contained in the goods-d for example chewing gum-when first manufactured, so that the goods are prevented from drying out to an undersirable degree. This is important in chewing'gum manufacture, because in dry climates or ,under dry conditions, the 'chewing gum within six months will become stale and brittle, and loose the natural plasticity necessary for a satisfactory chewing gum. In the case of hard candies wherein brilliancy and permanency-of color is a commercial necessity, my packaging will prevent the admission of moisture which ordinarily causes crystallization of the sugar and destroys the appearance of the candy, as well as tending to soften the same. I do not limit my invention to its application to confections, asV

(3) The manufac- Y Ult:

IIB

above described, but can apply the same, with equal advantage, to any substance which should be protected from moisture, or ,loss of moisture, and loss of flavor, for example, coffee, tea, tobacco.

It is to be understood that in the drawings the thickness of the various sheets, coat ings and seals have been enlarged for the purpose of clearness, and in order that the invention will be properly illustrated and understood.

What I claim and desire to secure by Y Letters Patent of the United States is l. A moisture-proof package comprising an inner body of definite form, and an envelop or wrapper of metal vfoil completely inclosing said body, and having overlapping edges and folds, said edges and folds o being hermetically sealed by a wax-like mav terial between said edges and coextensive therewith, and between the laps of said folds.

2. A moisture-proof package comprising an inner carton of substantially rectangular form, and an envelop or wrapper of metal foil completely inc losing said body, and having overlapping edges and folds, said edges and folds being hermetically sealed by a Wax-like material between said edges and co-extensive therewith, and between the laps of said folds.

3. A moisture-proof package comprising an inner carton of substantially rectangular form, and an envelop inclosin the same comprisin superposed sheets of paraflined paper an foil completely inclosing said carton, and having overlapping edges and folds, said edges and folds being hermetically sealed by paraffin between said edges and co-eXtensive therewith, and between the laps of said folds.

In testimony. whereof I have hereunto signed my name in the presence of a witness.

WALLACE APPLETON BEATTY.

Witness ADELE S. EBERHARDT. 

